Related Experiment Video
Updated: Aug 2, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
Published on: August 8, 2022
MYH7 in cardiomyopathy and skeletal muscle myopathy
Yuan Gao1, Lu Peng1, Cuifen Zhao2
1Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, 250012, China.
Insights
Mutations in the myosin heavy chain gene 7 (MYH7) cause heart and skeletal muscle diseases. This review clarifies how MYH7 variations impact sarcomere function, leading to complex myopathies and cardiomyopathies.
Area of Science:
- Cardiovascular Biology
- Muscle Physiology
- Genetics
Background:
- Myosin heavy chain gene 7 (MYH7) is crucial for cardiac and skeletal muscle contraction.
- MYH7 variations are linked to cardiomyopathies and skeletal myopathies, exhibiting significant familial variability.
- These disorders can present complex phenotypes affecting both heart and skeletal muscle.
Purpose of the Study:
- To review current knowledge on MYH7.
- To elucidate how MYH7 mutations affect sarcomere structure and function.
- To understand the resulting cardiomyopathies and skeletal myopathies.
Main Methods:
- Literature review of MYH7 gene variations and associated muscle disorders.
- Analysis of the impact of mutations on sarcomere physiology.
- Synthesis of recent advances in diagnosis, research models, and therapies.
Main Results:
- MYH7 mutations disrupt sarcomere integrity and function.
- Variations in MYH7 lead to a spectrum of cardiac and skeletal muscle myopathies.
- Significant progress has been made in diagnostic tools and therapeutic strategies.
Conclusions:
- Understanding MYH7's role is key to diagnosing and treating related muscle disorders.
- Advances in research models and therapies offer new hope for clinical applications.
- Further research on MYH7 is essential for precise clinical management.
Abstract:
Myosin heavy chain gene 7 (MYH7), a sarcomeric gene encoding the myosin heavy chain (myosin-7), has attracted considerable interest as a result of its fundamental functions in cardiac and skeletal muscle contraction and numerous nucleotide variations of MYH7 are closely related to cardiomyopathy and skeletal muscle myopathy. These disorders display significantly inter- and intra-familial variability, sometimes developing complex phenotypes, including both cardiomyopathy and skeletal myopathy. Here, we review the current understanding on MYH7 with the aim to better clarify how mutations in MYH7 affect the structure and physiologic function of sarcomere, thus resulting in cardiomyopathy and skeletal muscle myopathy. Importantly, the latest advances on diagnosis, research models in vivo and in vitro and therapy for precise clinical application have made great progress and have epoch-making significance. All the great advance is discussed here.
Related Concept Videos
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy I: Introduction and Classification
Satellite Stem Cells and Muscular Dystrophy
Cardiomyopathy V: Interprofessional Care
Cardiomyopathy IV: Restrictive Cardiomyopathy
Cardiomyopathy II: Dilated Cardiomyopathy

